July 15, 1898.] 



SCIENCE. 



59 



Amoug the Serranidffi, Eoccus Uneatus usu- 

 ally arrives in May, although the present 

 year we did not secure specific data. The 

 white perch (^Morone americana') spawns 

 during this and the following month, and 

 the sea-bass ( Centrojmstes striatus') , first seen 

 on the 10th, was taken in large numbers 

 on the 12th. It spawns in June. The 

 scup {Stenotomus chrysops) were abundant at 

 Cuttyhunk on the 11th, when thirty barrels 

 were taken. It is said to spawn early in 

 June. The squeteague (Cynoscion regalis), 

 first taken in April, was occasionally 

 brought to the station in May. The puflfers 

 (Spheroides maculatus) appeared during the 

 latter part of the month, and a fine lump- 

 fish ( Cyclopterus lumpus) was also captured. 

 The latter is said to breed in April. The 

 Gurnards were represented by both Priono- 

 tus caroUnus and Frionotus strigatus. It is 

 estimated that there were at least one 

 thousand in the trap on the 13th. Speci- 

 mens examined on the 16th were not ripe, 

 though the ovaries were large. 



The Gadidte abounded. Beautiful great 

 pollock were almost daily brought to the 

 laboratory ; cod were so numerous that they 

 found no market, and white hake (Phycis 

 tenuis) were a positive annoyance to the 

 fishermen. When so many inland labora- 

 tories are inadequately provided with ani- 

 mals for dissection it seems a great pity 

 that hundreds of barrels of this beautiful 

 material should yearly go to waste. 



Among the Pleuronectidse the summer 

 flounder (Paralichthys dentatus) was often 

 taken. The four- spotted flounder (Para- 

 lichthys ohlongus) and the window-pane 

 (Bothits maculatus) were abundant. Eggs 

 of the four-spotted flounder were ripe in 

 May, and have been hatched in the Chester 

 jars. The period of incubation is about 

 eight days. The eggs of the window-pane 

 are of about the same size as those of P. 

 ohlongus and readily fertilize. The good 

 eggs soon rise to the surface, leaving the 



immatui'e and injured eggs at the bottom. 

 The sole (Achirus fasciatus) was apparently 

 ripe the latter part of the month. Lophius 

 was abundantly taken from the ' Sound ' 

 traps on the shore of Marthas Vineyard. 



Molgxda and Ciona were ripe throughout 

 the month. 



Crustacea. — Gammarus annidatus occurred 

 in swarms. The tow-net at one haul, on the 

 16th, contained over two quarts, and the 

 animals were so numerous that in places 

 they gave a distinct color to the water. 

 Many had eggs. On the 23d they were 

 only occasionally found. Orchestia agilis 

 bears eggs in Maj^, and is, of course, abun- 

 dant. When Cyanea comes to Woods Holl 

 in May, it is often accompanied by Hyperia ; 

 the crustacean bears at this time most 

 beautiful great eggs, almost perfectly trans- 

 parent. On May 6, 1892, many were col- 

 lected at Woods Holl, and on June 8, 1893, 

 they were abundant in Narragansett Bay. 

 Idotea was found at N"ahantwith eggs, May 

 20, 1893. 



Schizopods, adults laden with eggs and 

 young, were daily taken. Lobsters began 

 to hatch on the 16th, and thousands were 

 planted in Vineyard Sound during the lat- 

 ter part of the month. Crangon was often 

 heavy with young, though Palamonetes did 

 not deposit its eggs until the latter part of 

 the month. Eupagurus longicarpus was found 

 bearing well-developed eggs on May 9, 1890, 

 and on May 16th the eyes of the embryos 

 could be seen. Carehiits granulatus often had 

 eggs, as did Gelasimus and lAbinia. The 

 crabzcea were first taken in the skimmings 

 on the 10th, and were abundant on the 11th. 

 Hippa, though often taken, was without 

 eggs. Pairs of Limidi might have been col- 

 lected by the hundred. 



Vermes. — The tow-net brought in many 

 surface forms. On the 7th Autolytus was 

 taken, but without eggs. On the 10th sev- 

 eral egg-bearing individuals were noted, 

 and on the 11th Dr. Mead saw a male 



